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Hw1 #19

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2394ad8
Hw1
Dragonaft Jun 26, 2018
3d9fc13
Merge pull request #1 from Dragonaft/Dragonaft-patch-1
Dragonaft Jun 26, 2018
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143 changes: 143 additions & 0 deletions src/main/java/school/lemon/changerequest/java/introduction/hw1/Main.java
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Original file line number Diff line number Diff line change
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import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("Выберите задание(1-10)");
int task = keyboard.nextInt();
switch (task) {
case 1: // 1 задание
double a = keyboard.nextInt();
double p = 4 * a;
System.out.println("p=" + p);
break;
case 2: // 2 задание
System.out.println("Введите количество сантиметров");
double san = keyboard.nextInt();
double met = san / 100;
System.out.println("Сантиметров в метрах:" + met);
break;
case 3: // 3 задание
System.out.println("Введите числа a и c");
double a2 = keyboard.nextInt();
double c = keyboard.nextInt();
System.out.println("Введите число b");
double b = keyboard.nextInt();
if (b > a2 && b < c || b < a2 && b > c) {
System.out.println("Число b между чисел a и c");
} else {
System.out.println("Число b не между чисел a и c");
}
break;
case 4: // 4 задание
double sum;
System.out.println("Введите число а");
double a3 = keyboard.nextInt();
System.out.println("Введите число b");
double b2 = keyboard.nextInt();
System.out.println("Введите число c");
double c2 = keyboard.nextInt();
if (a3 < b2 && a3 < c2) {
sum = b2 + c2;
System.out.println("Сумма наибольших чисел =" + sum);
} else if (b2 < a3 && b2 < c2) {
sum = a3 + c2;
System.out.println("Сумма наибольших чисел =" + sum);
} else if (c2 < a3 && c2 < b2) {
sum = a3 + b2;
System.out.println("Сумма наибольших чисел =" + sum);
}
break;
case 5: // 5 задание
System.out.println("Введите z");
double z = keyboard.nextInt();
System.out.println("Введите x");
double x = keyboard.nextInt();
System.out.println("Введите y");
double y = keyboard.nextInt();
double b3;
double a4;
b3 = 1 + (Math.pow(z, 2) / (3 + (Math.pow(z, 2) / 5)));
a4 = (2 * Math.sin(x - (Math.PI / 6)) * b3) / (0.5 + Math.pow(Math.sin(y), 2));
System.out.println("a=" + a4);
break;
case 6: // 6 задание
double z2;
System.out.println("Ведите x");
double x2 = keyboard.nextInt();
System.out.println("Введие y");
double y2 = keyboard.nextInt();
double s;
int fac1 = 1;
int fac2 = 1;
int fac3 = 1;
z2 = Math.sin(Math.pow(x2, 3)) + Math.pow(Math.cos(y2), 2);
for (int i = 1; i < 3; i++) {
fac1 = fac1 * i;
}
for (int i = 1; i < 4; i++) {
fac2 = fac2 * i;
}
for (int i = 1; i < 5; i++) {
fac3 = fac3 * i;
}
s = 1 + x2 + Math.pow(x2, 2) / fac1 + Math.pow(x2, 3) / fac2 + Math.pow(x2, 4) / fac3;
System.out.println("z=" + z2);
System.out.println("s=" + s);
break;
case 7: // 7 задание
int index = keyboard.nextInt();
switch (index) {
case 1:
System.out.println("Понедельник");
break;
case 2:
System.out.println("Вторник");
break;
case 3:
System.out.println("Среда");
break;
case 4:
System.out.println("Четверг");
break;
case 5:
System.out.println("Пятница");
break;
case 6:
System.out.println("Суббота");
break;
case 7:
System.out.println("Воскресенье");
break;
default:
System.out.println("error");
break;
}
case 8: // 8 задание
System.out.println("Введите n");
double n = keyboard.nextInt();
double i = 0;
double result;
for (result = 0; result != Math.pow(n * 2, 2); i++) {
result = Math.pow(n, 2) + Math.pow(n + i, 2) + result;
}
System.out.println("Result=" + result);
break;
case 9: // 9 задание
System.out.println("Введие n");
int n9 = keyboard.nextInt();
if ( n9 % 3 == 0 || n9 ==3 || n9 == 9) {
System.out.println("True");
} else {
System.out.println("False");
}
break;
case 10: // 10 задание
System.out.println("Введие строку из чисел");
String n3 = keyboard.next();
boolean result3 = n3.contains("2");
System.out.println(result3);
break;
}
}
}